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Background  High injury prevalence rates call for effective sports injury prevention strategies, which include the development and application of practical and reliable pre-participatory screening tools.    Objectives  The aim of this study was to investigate the intra-rater and inter-rater reliability of the one-legged hyperextension test (1LHET), the empty can (EC) and full can (FC) tests, the standing stork test (SST), the bridge-hold test (BHT) and the 747 balance test (747BT).    Method  Thirty-five healthy, injury-free male athletes (cricket and soccer players), aged 16–24 years, were evaluated by two physiotherapists. For each of the tests, the participants were evaluated twice (on two consecutive days) by each physiotherapist. Both the intra- and inter-rater reliability were determined. Cohen’s kappa ( k ) was calculated for the 1LHET, the EC and FC tests and the SST. The intraclass correlation coefficient (ICC) was used for the BHT and the 747BT. A confidence level of 95% ( p  ≤ 0.05) was applied as the criterion for determining the statistical significance of the results.    Results  The SST presented with the lowest level of intra-rater agreement (ICC = –0.20 to 0.10). On the other hand, the EC test was the only test where one rater achieved an excellent intersessional agreement ( k  = 0.80; 95% confidence interval [CI] 0.40–1.20). Substantial to excellent results for the inter-rater agreement for both sessions were recorded for the 1LHET ( k  = 0.70–0.90) and the BHT (ICC = 0.70–0.90).    Conclusion  Reliability values need to be considered when making clinical decisions based on screening tests. A more refined description of the testing procedures and criteria for interpretation might be necessary before including the six screening tests investigated in this study in formal screening protocols.    Clinical implication  Confirmed reliability of screening tests would enable sports professionals to make informed decisions when designing preparticipatory musculoskeletal screening tools and when dealing with the management of injury risks in athletes.    Keywords  musculoskeletal screening; injury risk management; intra-rater reliability; inter-rater reliability; soccer; cricket.

Intra-rater and inter-rater reliability of six musculoskeletal preparticipatory screening tests